package org.huqiwen.blog.control;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.huqiwen.blog.logic.LoginLogicBean;

public class LoginServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public LoginServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("UTF-8");
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		String result = new LoginLogicBean().verify(username, password);
		if("OK".equals(result)){
			request.getSession().setAttribute("username", username);
			response.sendRedirect("index.jsp");
			//request.getRequestDispatcher("index.jsp").forward(request, response);
		}else if ("PWD".equals(result)){
			request.setAttribute("error", "PWD");
			//response.sendRedirect("login.jsp");
			request.getRequestDispatcher("login.jsp").forward(request, response);
		}else {
			request.setAttribute("error", "NOUSER");
			request.getRequestDispatcher("login.jsp").forward(request, response);
		}
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
